saran7d / mad-exp-3

Ex.No: 2 To develop an application that uses GUI Components with Fonts and Colors.

Note: Create button for colors and fonts while clicking color or font button should change

AIM:

To create an application that uses GUI Components with Fonts and Colors using Android Studio.

EQUIPMENTS REQUIRED:

Latest Version Android Studio

ALGORITHM:

PROGRAM:

/*
Program to print the text “GUIcomponent”.
Developed by: Saran S S
Registeration Number :212221220048
*/

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 				xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World"
        android:textSize="25sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.366" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Change Front"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Change Color"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.626" />

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.java:

package com.example.mad_exp2;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    private Button changeFontButton , b2;

    private TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        changeFontButton = findViewById(R.id.button);
        b2 = findViewById(R.id.button2);
        textView = findViewById(R.id.textview);

        changeFontButton.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v) {
                // Change font style
                textView.setTypeface(Typeface.defaultFromStyle(Typeface.BOLD_ITALIC));
            }
        });
        b2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            {
                textView.setTextColor(getResources().getColor(R.color.purple_700));
            }
        });
    }
}

OUTPUT

RESULT

Thus a Simple Android Application that uses GUI Components with Fonts and Colors using Android Studio is developed and executed successfully.